Internal combustion engine. RU patent 2513048.
 Seal of detachable connection / 2489633Seal of a detachable connection includes a sealing metal gasket installed in a chamber formed with annular grooves of trapezoidal profile on flanges connected to each other. The sealing metal gasket consists of three parts: a base part and two changeable parts located on opposite end surfaces of the base part respectively. Material hardness of the base part is at least not lower than material hardness of flanges. Material hardness of changeable parts is lower than material hardness of flanges and lower than material hardness of the base part. |
 Sealing ridge, assembly of turbine blades, and gas turbine containing such blade assembly / 2486349Sealing ridge of the gas turbine blade assembly includes a straight section and a curved section; at that, width of the curved section is less than width of the straight section. Curved section includes two bent sections and two straight sections. An angle between straight section and straight section of the curved section and/or between two straight sections of the curved section is 60° to 90°. The other invention of the group refers to a gas turbine blade assembly containing a disc, fixing plates and curved sealing ridges made as above. Each blade is attached to the disc and has a body, a root and a flange between the body and the root. Between flanges of adjacent blades there are gaps, and between sections of roots of adjacent blades there are cavities of the root. Blades are fixed in axial direction on the disc with fixing plates. Sealing ridges are installed in gaps between flanges of adjacent blades and project in axial direction beyond the blade root and the fixing plate. One more invention refers to a gas turbine containing the above described blade assembly. |
 Manufacturing method of flat gaskets, and flat gasket itself / 2454583Method of mechanical connection of flat gaskets having at least two layers consists in the fact that individual layers are arranged in area of working tool, and at least one puncheon with almost round cross section partially cuts the layers in certain places of the corresponding area of connection, and at least some parts of the rest material are deformed outside the corresponding cut, thus forming bent areas; at that, they are formed so that the corresponding cut area is rounded and the appropriate bent area is straight-line. Sharp edges at least of one of the layers, which are formed in the cut area, are connected to material at least of another layer in order to obtain the connection by means of clamping, but with possibility of its release. |
 Cylinder head gasket / 2401393Proposed gasket comprises first main plate on head side and second main plate on cylinder block side, adjusting shim to control gasket thickness, and plate to increase pressure. Complete outward bends in first and second main plates extend from the side of cylinder peripheral parts, while semi-ends extend at the said outward bend area and therefrom. Said complete outward bends are arranged so that their top parts face each other at the points they are vertically opposed at. Adjusting shim and pressure increase plate are arranged between top parts. Invention covers also another version of gasket design. |
 Sealing metal ring and detachable flanged sealing device (versions) / 2395740Sealing metal spring ring is made from elastic plate metal and has in its cross section the U-shaped profile with one outward inclined wall. Non-inclined wall of the profile is solid along the whole ring, and the second wall and radial part has recesses across the cross section along the whole ring, which form bent lobes on the ring. There described are three versions of implementation of detachable flanged sealing device on the basis of this sealing metal spring ring. |
 Metal gasket / 2358172Multi-layer metal gasket contains at least two metal layers with coinciding holes and sealing extensions surrounding the said holes. The retaining layer is partly located between gasket layers. The area of retaining layer is less than the area of either of gasket layers. The retaining layer is partly stretched in radial direction from the hole outwards behind the sealing extensions. It is fixed to one of the layers but from only one side of sealing extensions. At the opposite side the ends are free. The invention discloses plant with multiplayer metal gasket. |
 Seal for vessel lid / 2298715Seal comprises ring rectangular groove, metallic sealing member mounted in the groove and welded to the lid and housing, pressing flange, fastening studs, and nuts. The groove is made in the lid and housing of the vessel along the vertical line of the joint. The sealing member is made of a semi-torus, and the convex side of the semi-torus is mounted in the groove. |
 Turbine machine with device for sealing joints / 2296865Turbine machine comprises nozzle block mounted coaxially between two housing members and made of several sectors provided with nozzle blades interposed between the members of inner and outer shelves. The members are provided with sealing spacers mounted radially in the space that spaces the members from the housing member. The spacers of two adjacent sectors are joined, and the joint is overlapped by means of a lining interposed between the spacers and locking member that locks the spacers in a position to seal. The locking member has lag mounted in one of the sectors and passing along the edge of the sector . The free end of the lag is pressed to the joint lining in the zone out of the sector. |
 Flat spacer and method of its making / 2273778Flat space comprises at least one metallic layer provided with at least one through opening. The collar is formed around the through opening. The metallic layer in the region of the collar from its side is made of a wavy or toothed profile. The layer with the profile is made of spring steel or steel deformable in the cold condition. The steel is hardened with the subsequent cooling. The method of making the spacer is presented. |
 Gasket for head of internal combustion engine cylinder block / 2456466Gasket for head of cylinder block for sealing of two surfaces of ICE engine mounts, which are fixed relative to each other, includes metal frame made from several metal plates connected to each other, to which coating from soft material is applied on one side of the plate, or on both sides; middle part of metal frame includes metal plate with soft coating on one side, which is bent along the contour of holes for cylinders at an angle of (20-30)° relative to its plane; at that, surfaces of metal base of gasket at cooling fluid cross-flow holes are cleaned from sealing material; generatrixes of cooling fluid cross-flow holes are shaped and have pointed exit edge in the direction of cooling fluid flow. |
 Cylinder head seal / 2381376ICE cylinder head seal with cylinder channel and fluid medium bore comprises first metal plate (10) that has section curved around cylinder bore and bent section parting aside from said curved part, and second metal plate (20, 20A) superimposed on first metal plate and furnished with first convex collar (21, 21A) extending towards first metal plate. First convex collar is arranged on curved section. At least one secondary plate (30, 40, 50) is inserted inside said curved plate. |
 Sealing gasket (versions), engine with one or more push rod-controlled valves, and method of assembling engine assembly unit (versions) / 2369763Proposed gasket 48 (54) seals lower casing relative to upper casing in engine 10 equipped with rocker 32 swinging around axle 36, push rod 44 passing from lower casing 34 (14) to upper casing 42 (34) to get into engagement with rocker end. Gasket 48 comprises sealing section 56 to seal at least a part of upper casing relative to lower casing, and section 60 supporting push rod and designed to engage push rod 44. At least a part of aforesaid engagement section with push rod is made from material softer that that of push rod. Enclosed are versions of ICE gasket, ICE with gasket and methods of ICE assembly unit assembling. |
 Sealing device with flaky bearing element and shifted elastomer seal / 2344325Sealing device is made of at least two bearing layers folded together and with at least one hole in bearing element that matches holes through separating plane of two elements subject to sealing. Elastomer seal is pressed with bearing element, creating sealing collars on opposite sides of bearing element, which join holes with appropriate contact surfaces that are engaged to elements subject to sealing. Sealing contact surfaces are surfaces that are installed asymmetrically to each other via bearing element, taking appropriate mismatch of holes in elements subject to sealing along separating plane. |
 Metal gasket / 2326255Invention relates to propulsion engineering and can be used as a sealing between the cylinder assembly head and engine case. The gasket consists of, at least, one active layer and, at least, one adjustable layer, which have combined holes for the combustion chamber. Adjustable layer has ring areas, surrounding the holes for combustion chambers, and legs, protruding the ring areas in the radial direction. The ring areas are located under the corresponding sealing edges of the active layer. Every leg has a neck area coming outwards in the radial direction and a set of side bent tongues, supported at the end of the neck area and protruding this end in the radial direction. Tongues come through the corresponding set of installed side-directed windows made in the active layer and are back-bent (directed towards each other) to provide fixing of adjustable layer to active layer. |
 Internal combustion engine cylinder head gasket / 2319847Proposed gasket for cylinder head of internal combustion engine has metal skeleton made up of several interconnected metal plates with sealing coating made of soft material either from one of plate sides or from two sides, and holes. Metal skeleton contains metal plate in middle part with one-side soft coating, made curved over contour of holes at angle of 20-30° relative to its plane. |
 Cylinder-piston group / 2277180Invention can be used in cylinder-piston groups of piston machines and internal combustion engines. Proposed cylinder-piston group has cylinder, piston fitted in cylinder with crown and side surface provided with compression rings. Piston is provided with cavity in crown limited from top by cover plate with central hole. Cavity is provided with curvilinear projection arranged along axis of piston. Channel laid from cavity to side of cylinder face are formed by curvilinear surface and cover plate, and made narrowing and provided with outlets over perimeter of piston crown in zone of crown. Channels have different direction. |
| Cylinder-piston group / 2277180 Invention can be used in cylinder-piston groups of piston machines and internal combustion engines. Proposed cylinder-piston group has cylinder, piston fitted in cylinder with crown and side surface provided with compression rings. Piston is provided with cavity in crown limited from top by cover plate with central hole. Cavity is provided with curvilinear projection arranged along axis of piston. Channel laid from cavity to side of cylinder face are formed by curvilinear surface and cover plate, and made narrowing and provided with outlets over perimeter of piston crown in zone of crown. Channels have different direction. |
| Internal combustion engine cylinder head gasket / 2319847 Proposed gasket for cylinder head of internal combustion engine has metal skeleton made up of several interconnected metal plates with sealing coating made of soft material either from one of plate sides or from two sides, and holes. Metal skeleton contains metal plate in middle part with one-side soft coating, made curved over contour of holes at angle of 20-30° relative to its plane. |
| Metal gasket / 2326255 Invention relates to propulsion engineering and can be used as a sealing between the cylinder assembly head and engine case. The gasket consists of, at least, one active layer and, at least, one adjustable layer, which have combined holes for the combustion chamber. Adjustable layer has ring areas, surrounding the holes for combustion chambers, and legs, protruding the ring areas in the radial direction. The ring areas are located under the corresponding sealing edges of the active layer. Every leg has a neck area coming outwards in the radial direction and a set of side bent tongues, supported at the end of the neck area and protruding this end in the radial direction. Tongues come through the corresponding set of installed side-directed windows made in the active layer and are back-bent (directed towards each other) to provide fixing of adjustable layer to active layer. |
| Sealing device with flaky bearing element and shifted elastomer seal / 2344325 Sealing device is made of at least two bearing layers folded together and with at least one hole in bearing element that matches holes through separating plane of two elements subject to sealing. Elastomer seal is pressed with bearing element, creating sealing collars on opposite sides of bearing element, which join holes with appropriate contact surfaces that are engaged to elements subject to sealing. Sealing contact surfaces are surfaces that are installed asymmetrically to each other via bearing element, taking appropriate mismatch of holes in elements subject to sealing along separating plane. |
| Sealing gasket (versions), engine with one or more push rod-controlled valves, and method of assembling engine assembly unit (versions) / 2369763 Proposed gasket 48 (54) seals lower casing relative to upper casing in engine 10 equipped with rocker 32 swinging around axle 36, push rod 44 passing from lower casing 34 (14) to upper casing 42 (34) to get into engagement with rocker end. Gasket 48 comprises sealing section 56 to seal at least a part of upper casing relative to lower casing, and section 60 supporting push rod and designed to engage push rod 44. At least a part of aforesaid engagement section with push rod is made from material softer that that of push rod. Enclosed are versions of ICE gasket, ICE with gasket and methods of ICE assembly unit assembling. |
FIELD: engines and pumps.
SUBSTANCE: invention relates to automotive industry. ICE comprises cylinder block, cylinder iron sleeve (1), cylinder iron cover (2), steel gasket (3) in gas joint between sleeve (1) and cover (2) studded together and to cylinder block. Gas joint gasket (3) features rectangular cross-section and is made of material its hardness being 10÷15% lower than that of cylinder sleeve (1) and cylinder cover (2). Taken sizes ensure compression forces in gasket (3) resulted from tightening of aforesaid studs at 15÷20% lower force than gasket material yield point. Cylinder sleeve (1) and cylinder cover (2) gas joint surfaces have extending triangular teeth (8) in width and height making 2÷5% of gas joint gasket (3) width and are located at mid section of said gasket.
EFFECT: compensated mutual radial and axial shifts of cylinder sleeve and cover.
2 dwg
The invention relates to the mechanical engineering, in particular to a medium-speed internal combustion engines.
Known construction engines, where the seal gas joint combustion chamber between the sleeve of cylinder and cylinder head made with the use of sheet metal gaskets of different profile (for example, U.S. patent 6,161,842). The drawback of such seals is that due to the small thickness of pads they cannot compensate occur when the engine is mutual radial and angular micromovings cylinder liners and cylinder cover. This leads to the wear of contact surfaces of the cylinder liners, and cylinder cover and gasket, gas joint and result in the loss of efficiency of the seals.
The proposed construction of a cylinder liners, and cylinder cover, laying gas joint by choosing the shape and material of the strip, the configuration of the mating surfaces of cylinder liners and cylinder cover allows to compensate mutual radial and angular micromovings cylinder liners and cylinder cover by elastic deformation strip, which eliminates wear the mating surfaces and provides effective sealing gas joint for a long engine operation.
The aim of the invention is a significant increase in the efficiency of the seals, gas joint combustion chamber at the Assembly site sleeve of cylinder - laying gas joint - cylinder cover.
Figure 1 shows the engine, a General view; figure 2 - node A.
Cast-iron cylinder liner 1, cast iron cylinder cover 2, steel strip, gas joint 3 form a cylinder kit, which shall be sealed with the cylinder block 4 using the power pins 5. Cylinder package with a piston 6 make up the combustion chamber 7. On the mating surfaces of cylinder liners and cylinder head made protruding teeth triangular section 8, located in the average width of the zone of laying gas joint.
Seal gas joint is carried out by providing the following conditions:
- thickness and material of laying gas joint chosen so that the voltage compression σ ooh it from the tightening torques power pins must be less than the yield strength of the material laying gas joint and was
, where:σ t - yield stress of the material laying gas joint 3;
R is a common effort of the power pins 5;
d - average seal diameter gas joint 3, determined by the diameter of cylinder liners;
and - the width of a strip of gas junction 3.
As a result laying gas joint works in the elastic range that provides a stable environment for sealing gas joint for a long time;
- the hardness of the material (for example, low-alloy, high-ductility steel HM, GOST 4543-71 with hardness ≤179 HB, with temporal resistance σ =45 kg/mm 2 ) laying gas joint should be 10% to 15% below the level of hardness (for example, chshg (HPV) with hardness 180-265 NV and with temporal resistance σ =45-70 kg/mm 2 - Kochnev NI "high-Strength cast iron with spherical graphite. Properties and application". - M: A motor cycle", 1963, p.53) cylinder liners and cylinder cover. Due to this, and given that the sleeve of cylinder and cylinder head made the teeth triangular cross-section, the width and height of 2% to 5% of the width of the strip, and affixing cylinder liners and cylinder cover power pins is the indentation of cloves in the body gasket, gas joint and is provided so seal the combustion chamber;
- cross-section strips gas joint performed in the form of a rectangle, in which the thickness of the gasket, gas joint allows for the account of its own elastic deformation to compensate mutual radial and angular micromovings the mating surfaces of cylinder liners and cylinder cover arising at work of the engine, without wear the mating surfaces.
The proposed structure of laying gas joint, cylinder liners and cylinder cover provides quality and reliable sealing gas joint combustion chambers of an internal combustion engine for a long period of operation.
The internal combustion engine contains a cylinder, a cast-iron cylinder liner, cast iron cylinder cover, steel strip, gas joint between the sleeve and the cylinder head, bonded by means of power pins cylinder mounting kit to the cylinder block, wherein between the sleeve of cylinder and the cylinder head gasket, gas joint made of rectangular cross-section of the material hardness is below the hardness mating cylinder liners and cylinder cover 10% to 15%, and sizes, providing the compressive stress in the lining from the tightness of the power pins of the cylinder mounting kit below the yield strength of the material strips at 15% to 20%, and on the surfaces of gas joint cylinder liners and cylinder head made protruding teeth triangular cross-section, the width and height of the components of 2% to 5% of the width of the strip, gas joint and located in the average width of the area of the strip.